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-   -   Brushless Racing REVO buildup lotsa pics! (https://www.rc-monster.com/forum/showthread.php?t=8162)

Matthew_Armeni 11.06.2007 06:30 PM

Quote:

Originally Posted by riceman (Post 127435)
Wow - I looked at that pack a while back and thought about getting one. I decided against it as the specs were a bit borderline and I didn't want to blow it up. True RC lists the 50A continuous and 75A max burst with "Field tested to 113A burst". I've Eagle tree'd my Revo set-up and it was right at the fringe. Looks like you've confirmed their specs. Do you have an Eagletree Matt? I'd be interested in seeing what your setup is doing. FWIW - I'm running a 3S 8000 Maxamps pack.

I don't have an Eagletree but I do want to get one, I too am interested in what kinda of amps I'm pulling. How easy is it pull out and put in? Maybe next time we're at the track you could toss it in my Revo and drive it around for a couple laps, or, you could run my battery on your setup. By the way, since mine is a 4S and yours is 3S, it might lower the amps a bit. I want to get a TrueRC 4S2P 8000 pack, they're not as long or wide and would fit the tray better, plus, I won't have to worry about finishing the main.

Quote:

Originally Posted by BL_RV0 (Post 127459)
how are your speeds? Temps? runtimes? Weight? i have so many q's its aint even funny.:lol: ok maybe yea it is :lol:

I don't know the speed, I'll plug it into Brians calculator and get an estimate, but it's plenty fast for the track. Runtime is around 12-18 min, depending on how hard I'm driving. It weighs slighty more then my nitro setup but I don't notice the weight at all, hopefully I'll get an actual weight this week. Temps are listed already, but it was like 160 motor, 115 ESC, 110-120 battery. Expect lower temps with a better motor like a neu.

riceman 11.07.2007 01:53 PM

I'll be sure to bring my eagletree next time I'm at the track - or maybe we can meet up at palomar sometime for some practice. I won't be able to race this weekend. I have some family obligations to attend to.

I have one of the TrueRC 4S2P 8000 packs. The thing is an absolute brick. I'm running it in my LST2. It's definitely up to the task for that application.

Matthew_Armeni 11.13.2007 05:56 PM

Updated pics! I've read some forums and heard questions about front rear balance with the Tekno setup and I have so far not had any ill effects, it actually feels good in the air, mostly level flight. Having said that I was not getting as much steering as I was with my nitro version on and off power, the front didn't seem to want to dig in. Now, there could be a number of reasons why, I am now running a swaybar setup, wasn't with the nitro (I believe this to be the main reason, I may remove the front swaybar at the race, we'll see), I am now using the longer 3.3 chassis which lengthens the front whereas before I was using the 2.5, and lastly there is a lot more weight in the back. So, in the interest of trying new things, I moved the battery to the front right and the receiver box to the back right. Fairly simple mod, rx box lined up with stock chassis holes, nothing to drill. The battery tray required me to drill 3 new holes in the tray itself, but still use stock chassis holes. It seems to hang off but the tray has walls so it's not flimsy and it rests on the chassis in the back. Here's the pics, questions comments are encouraged!:yes:
Oh, before anyone says anything, yes, I know the fan is broken- stupid me was adjusting shift point, not running a rollbar or body, wheelied and ripped the fan right off. MM is fine though, whew!
http://inlinethumb26.webshots.com/28...600x600Q85.jpg

http://inlinethumb19.webshots.com/29...600x600Q85.jpg

http://inlinethumb35.webshots.com/28...600x600Q85.jpg

http://inlinethumb03.webshots.com/29...600x600Q85.jpg

http://inlinethumb46.webshots.com/28...600x600Q85.jpg

http://inlinethumb48.webshots.com/28...600x600Q85.jpg

Also, don't mind the grinding on the middle of the tray, I was running it upside down in my 8ight conversion and needed a flat surface for the battery pack.

gtxracer 11.13.2007 08:44 PM

You got a build of the 8ight anywhere?

Matthew_Armeni 11.13.2007 08:56 PM

Quote:

Originally Posted by gtxracer (Post 129265)
You got a build of the 8ight anywhere?

Right here

mabu 11.17.2007 12:34 PM

Are you using the mechanical break or do you use the breaking setting of the esc?

riceman 11.17.2007 01:00 PM

Quote:

Originally Posted by mabu (Post 130020)
Are you using the mechanical break or do you use the breaking setting of the esc?

Hi and welcome to the forum.

The Tekno kit employs the use of mechanical brakes.

mabu 11.17.2007 01:34 PM

Quote:

Originally Posted by riceman (Post 130028)
Hi and welcome to the forum.

The Tekno kit employs the use of mechanical brakes.

I know - i already own one of these .. i am waiting for my revo roller :yipi:
I am gonna build it with a Feigao 8XL running on 4s Lipo and a hexTronik 120Amp controller.

My last problem -at the moment- is about wiring esc and the servo used for mechanical brakes :oops:

riceman 11.17.2007 01:51 PM

Quote:

Originally Posted by mabu (Post 130038)
I know - i already own one of these .. i am waiting for my revo roller :yipi:
I am gonna build it with a Feigao 8XL running on 4s Lipo and a hexTronik 120Amp controller.

My last problem -at the moment- is about wiring esc and the servo used for mechanical brakes :oops:

Ok - I didn't understand your original question. There are two ways to do it. The easiest is to plug a y connector onto the throttle port of the receiver. Plug the ESC into one ind of the y and the throttle/brake servo into the other. Be sure to disable reverse and braking on the controller. The other way will depend on your radio's capability. Some have the functionality for mixing channels. You can plug the throttle/brake servo into the third channel and use the radio programming to mix with the throttle channel and have them work together. You'll have to check you radio's manual to see if it has this feature.

Matthew_Armeni 11.17.2007 02:02 PM

Well currently I am mixing the third channel on my Hitec CRX with the throttle channel, this way the brake servo only moves in one direction. This is probably the best way to set it up. However, on my original setup I just used a y cable out of the throttle channel on the rx. Turn the brakes off on your esc and you can use the endpoint on your radio to adjust max throw on the brake servo (just as you would a nitro) because that setting won't effect the esc. Be sure the endpoint is maxxed out for the throttle, or positve endpoint, you only want to mess with the brake, or negative endpoint.
I hope I explained that well enough, if you have any more questions, please feel free to ask, and welcome to the forums:yipi:

Matthew_Armeni 11.17.2007 02:03 PM

Wow, I type sloooooooow..:lol:, riceman beat me to the punch!

mabu 11.17.2007 02:33 PM

Oh ... i didn't think about mixing channels :angel:

i tried a setup now ... it is working well using a mx16-s :smile:

Thanks :)

Pierre 11.17.2007 03:26 PM

Humm
I love brushless revo conversion !

Revracer 11.29.2007 08:51 PM

it looks like the motor will hit the rear arm in hard landings? does it or is that just from the view i saw? does it hurt suspension travel?

Matthew_Armeni 11.29.2007 08:58 PM

Quote:

Originally Posted by Revracer (Post 132381)
it looks like the motor will hit the rear arm in hard landings? does it or is that just from the view i saw? does it hurt suspension travel?

It doesn't hit, although it is close. I'm running Mikes Motor heatsink clamp and that pushes the motor back a little further then if I weren't to run it but it still fits with no problems.

fromdaboz707 04.06.2008 04:31 AM

what is a good motor for an e-revo

fromdaboz707 04.06.2008 04:33 AM

e-revo
 
Quote:

Originally Posted by Matthew_Armeni (Post 127008)
Well I won my main in MT, lapped the other guys too. Hopefully there will be more racers next time, I like a bigger field, it's a lot more fun. I temped my clutchbell, motor, ESC, and battery after each practice, qualfier, and main. 5 min quals, and 1 10 min main(after the main I did a bunch of donuts too). My highest temps of the day were
-Clutch-116
-Motor-166
-ESC-118
-Battery-121
Outside temps-the high was mid 70's but in the sun it felt like mid 80's.
I was running the RCM xl heatsink on the motor and a novak 25mm fan on the MM. Also, I started the day running 15/38 stuck in second because I stripped my 36 spur the previous night and 18/36 is just barely too tight to run (17/36 should be fine, as well as 18/34-haven't verified this though) but I wasn't fast enough on the straight and did not have enough pickup to clear all the doubles. I was able to get a 36 spur at the track so I threw that on and also went back to the 18 clutch for the second qualifier, bingo! I was now clearing all the jumps with ease and zooming down the straight. Also of note is that my temps stayed pretty consistent with the gearing change. In fact, the only change in temps (more the 10 degrees) was the battery after the main (due to the longer run time). The battery was around 101-110 during the 5 min quals.
I think I covered everything, so here's a few pics, also, a link to the tracks site.

http://inlinethumb43.webshots.com/26...600x600Q85.jpg

http://inlinethumb03.webshots.com/28...600x600Q85.jpg

http://inlinethumb46.webshots.com/26...600x600Q85.jpg

what is a good motor for an e-revo

suicideneil 04.06.2008 09:19 AM

Quote:

Originally Posted by fromdaboz707 (Post 160949)
what is a good motor for an e-revo


What are you currently using?
Are you going electric from nitro, or starting from scratch?
Do you want to go BL, or just sticking with brushed electronics?
What voltage will you want to run/ how many cells/ what kind of batteries?
What is the weight of your rig?
Do you have any existing experience of electric/ BL?

Better to read the stickies and existing E-revo threads and do a little research, rather than just jumping onto a thread and saying "what am best motor?".....:rules:

fromdaboz707 04.06.2008 02:49 PM

Quote:

Originally Posted by suicideneil (Post 160967)
What are you currently using?
Are you going electric from nitro, or starting from scratch?
Do you want to go BL, or just sticking with brushed electronics?
What voltage will you want to run/ how many cells/ what kind of batteries?
What is the weight of your rig?
Do you have any existing experience of electric/ BL?

Better to read the stickies and existing E-revo threads and do a little research, rather than just jumping onto a thread and saying "what am best motor?".....:rules:

i have a revo 3.3 and i am doing nitro to electric and i have seen do many BL motors out on the market and i do not know what to get and i am goign to use old 6 cell 3800 i have it first then go get a 3 or 4c max amps lipo

suicideneil 04.06.2008 07:43 PM

4cell lipo from somewhere other than maxamps would be best, depends on your budget though (4s = 4 cells, the 'C' stands for the packs amp rating EG: 5000mah 10c pack is able to put out 50amps in theory). Maxamps are good, good over-rate alot of their stuff.

Budget is your biggest issue to concider then before choosing your motor and esc, since there as several 4s lipo/12cell Nimh esc and suitable motors to choose from....


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